/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:53,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:53,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:53,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:53,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:53,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:53,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:53,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:53,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:53,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:53,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:53,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:53,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:53,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:53,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:53,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:53,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:53,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:53,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:53,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:53,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:53,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:53,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:53,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:53,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:53,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:53,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:53,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:53,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:53,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:53,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:53,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:53,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:53,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:53,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:53,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:53,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:54,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:54,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:54,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:54,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:54,021 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:54,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:54,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:54,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:54,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:54,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:54,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:54,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:54,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:54,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:54,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:54,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:54,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:54,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:54,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:54,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:54,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:54,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:54,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:54,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:54,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:54,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:54,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:54,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:54,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:54,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:54,538 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:54,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-12-22 06:55:54,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f485c49f/a739df08435c40538a1ee24015d07eae/FLAG1bf5c0ec6 [2020-12-22 06:55:55,456 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:55,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-12-22 06:55:55,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f485c49f/a739df08435c40538a1ee24015d07eae/FLAG1bf5c0ec6 [2020-12-22 06:55:55,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f485c49f/a739df08435c40538a1ee24015d07eae [2020-12-22 06:55:55,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:55,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:55,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:55,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:55,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:55,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:55,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638817ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55, skipping insertion in model container [2020-12-22 06:55:55,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:55,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:55,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:56,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2020-12-22 06:55:56,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:56,206 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:56,353 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2020-12-22 06:55:56,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:56,415 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:56,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56 WrapperNode [2020-12-22 06:55:56,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:56,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:56,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:56,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:56,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:56,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:56,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:56,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:56,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... [2020-12-22 06:55:56,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:56,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:56,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:56,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:56,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:58,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:58,047 INFO L299 CfgBuilder]: Removed 204 assume(true) statements. [2020-12-22 06:55:58,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:58 BoogieIcfgContainer [2020-12-22 06:55:58,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:58,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:58,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:58,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:58,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:55" (1/3) ... [2020-12-22 06:55:58,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d19b7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:58, skipping insertion in model container [2020-12-22 06:55:58,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:56" (2/3) ... [2020-12-22 06:55:58,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d19b7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:58, skipping insertion in model container [2020-12-22 06:55:58,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:58" (3/3) ... [2020-12-22 06:55:58,059 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-12-22 06:55:58,067 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:58,073 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:58,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:58,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:58,121 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:58,121 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:58,121 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:58,121 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:58,121 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:58,121 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:58,122 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-12-22 06:55:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:58,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:58,149 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times [2020-12-22 06:55:58,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256247236] [2020-12-22 06:55:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:58,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256247236] [2020-12-22 06:55:58,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:58,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125320376] [2020-12-22 06:55:58,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:58,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:58,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:58,491 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2020-12-22 06:55:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,562 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2020-12-22 06:55:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:58,564 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,586 INFO L225 Difference]: With dead ends: 280 [2020-12-22 06:55:58,586 INFO L226 Difference]: Without dead ends: 139 [2020-12-22 06:55:58,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-22 06:55:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-12-22 06:55:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-22 06:55:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2020-12-22 06:55:58,646 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2020-12-22 06:55:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,647 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2020-12-22 06:55:58,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2020-12-22 06:55:58,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:58,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:58,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:58,650 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,651 INFO L82 PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times [2020-12-22 06:55:58,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859222672] [2020-12-22 06:55:58,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:58,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859222672] [2020-12-22 06:55:58,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:58,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134956976] [2020-12-22 06:55:58,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:58,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:58,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,804 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2020-12-22 06:55:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,832 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2020-12-22 06:55:58,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:58,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,834 INFO L225 Difference]: With dead ends: 139 [2020-12-22 06:55:58,835 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 06:55:58,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 06:55:58,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-22 06:55:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 06:55:58,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2020-12-22 06:55:58,848 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2020-12-22 06:55:58,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,849 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-12-22 06:55:58,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:58,849 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2020-12-22 06:55:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:58,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:58,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:58,851 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,852 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2020-12-22 06:55:58,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355066810] [2020-12-22 06:55:58,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:59,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355066810] [2020-12-22 06:55:59,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:59,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:59,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841556110] [2020-12-22 06:55:59,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:59,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:59,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:59,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:59,057 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 5 states. [2020-12-22 06:55:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:59,219 INFO L93 Difference]: Finished difference Result 133 states and 195 transitions. [2020-12-22 06:55:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:59,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-22 06:55:59,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:59,223 INFO L225 Difference]: With dead ends: 133 [2020-12-22 06:55:59,224 INFO L226 Difference]: Without dead ends: 82 [2020-12-22 06:55:59,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:59,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-22 06:55:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-12-22 06:55:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 06:55:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2020-12-22 06:55:59,238 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2020-12-22 06:55:59,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:59,239 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2020-12-22 06:55:59,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2020-12-22 06:55:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:59,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:59,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:59,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:59,241 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:59,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2020-12-22 06:55:59,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:59,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885180277] [2020-12-22 06:55:59,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:59,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885180277] [2020-12-22 06:55:59,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:59,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:59,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295575663] [2020-12-22 06:55:59,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:59,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:59,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:59,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:59,348 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2020-12-22 06:55:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:59,415 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2020-12-22 06:55:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:59,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 06:55:59,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:59,418 INFO L225 Difference]: With dead ends: 173 [2020-12-22 06:55:59,418 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 06:55:59,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 06:55:59,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-12-22 06:55:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 06:55:59,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-12-22 06:55:59,435 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2020-12-22 06:55:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:59,435 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-12-22 06:55:59,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:59,436 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-12-22 06:55:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:55:59,437 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:59,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:59,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:59,438 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:59,438 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2020-12-22 06:55:59,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:59,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770099781] [2020-12-22 06:55:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:59,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770099781] [2020-12-22 06:55:59,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:59,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:59,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287877125] [2020-12-22 06:55:59,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:59,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:59,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:59,557 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-12-22 06:55:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:59,760 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2020-12-22 06:55:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:59,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 06:55:59,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:59,766 INFO L225 Difference]: With dead ends: 515 [2020-12-22 06:55:59,766 INFO L226 Difference]: Without dead ends: 422 [2020-12-22 06:55:59,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-22 06:55:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2020-12-22 06:55:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-12-22 06:55:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2020-12-22 06:55:59,803 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2020-12-22 06:55:59,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:59,804 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2020-12-22 06:55:59,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2020-12-22 06:55:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 06:55:59,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:59,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:59,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:59,806 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2020-12-22 06:55:59,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:59,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700921576] [2020-12-22 06:55:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:59,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:59,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:56:00,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:56:00,009 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:56:00,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:00,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:00 BoogieIcfgContainer [2020-12-22 06:56:00,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:00,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:00,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:00,113 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:00,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:58" (3/4) ... [2020-12-22 06:56:00,117 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:56:00,270 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product60.cil.c-witness.graphml [2020-12-22 06:56:00,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:00,273 INFO L168 Benchmark]: Toolchain (without parser) took 4589.07 ms. Allocated memory was 174.1 MB in the beginning and 220.2 MB in the end (delta: 46.1 MB). Free memory was 147.4 MB in the beginning and 187.4 MB in the end (delta: -40.0 MB). Peak memory consumption was 112.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,273 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 174.1 MB. Free memory is still 146.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:00,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.09 ms. Allocated memory is still 174.1 MB. Free memory was 147.1 MB in the beginning and 124.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.91 ms. Allocated memory is still 174.1 MB. Free memory was 124.6 MB in the beginning and 154.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,275 INFO L168 Benchmark]: Boogie Preprocessor took 75.27 ms. Allocated memory is still 174.1 MB. Free memory was 154.6 MB in the beginning and 151.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,275 INFO L168 Benchmark]: RCFGBuilder took 1451.32 ms. Allocated memory is still 174.1 MB. Free memory was 151.5 MB in the beginning and 82.2 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,276 INFO L168 Benchmark]: TraceAbstraction took 2060.65 ms. Allocated memory was 174.1 MB in the beginning and 220.2 MB in the end (delta: 46.1 MB). Free memory was 81.7 MB in the beginning and 88.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,277 INFO L168 Benchmark]: Witness Printer took 157.69 ms. Allocated memory is still 220.2 MB. Free memory was 88.0 MB in the beginning and 187.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:00,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 174.1 MB. Free memory is still 146.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 729.09 ms. Allocated memory is still 174.1 MB. Free memory was 147.1 MB in the beginning and 124.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 103.91 ms. Allocated memory is still 174.1 MB. Free memory was 124.6 MB in the beginning and 154.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.27 ms. Allocated memory is still 174.1 MB. Free memory was 154.6 MB in the beginning and 151.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1451.32 ms. Allocated memory is still 174.1 MB. Free memory was 151.5 MB in the beginning and 82.2 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2060.65 ms. Allocated memory was 174.1 MB in the beginning and 220.2 MB in the end (delta: 46.1 MB). Free memory was 81.7 MB in the beginning and 88.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. * Witness Printer took 157.69 ms. Allocated memory is still 220.2 MB. Free memory was 88.0 MB in the beginning and 187.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 771]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L570] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L917] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L990] int retValue_acc ; [L991] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] int retValue_acc ; [L808] retValue_acc = 1 [L809] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L997] tmp = valid_product() [L999] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L134] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L141] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L368] int tmp ; [L369] int tmp___0 ; [L370] int tmp___1 ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L374] tmp = isMethaneLevelCritical() [L376] COND FALSE !(\read(tmp)) [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L380] tmp___0 = getWaterLevel() [L382] COND TRUE tmp___0 == 2 [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L384] tmp___1 = isPumpRunning() [L386] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L771] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 753 SDslu, 413 SDs, 0 SdLazy, 67 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 261 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...